Well, the message is short. GR owners, buy wide converter just for those situations where 28mm is just not enough. Here+s the example shot from my window. Excellent quality not much distortion, what more to ask. As a bonus, inner lens barrel is protected. Bit expensive but worth it. Stanislaw

Here`s another example of use o wide converter. I held the camera in right hand and the first shot was just to tight. I put wide coverer on and voila, Does whole difference adding more urban space. By the way, I forgot to set a manual distance and in some cases GR sets focus on a subject with most contrast. In this case background. Maybe is better like this, who knows. Stanislaw

the 21mm is a little marvel - beautiful piece of glass and makes the GR just that much more useful to me at least (architecturaland interior photographer )Seriously if Ricoh can stick an APS-C sensor in a camera this size with a lens this good, then next if they sell it should be still great. If they could make a 28mm with APS-C sensor @24mp and a FX sensor at 50mm @24mp I'd buy both and happily leave my D810 at home all the time.